L293D H Bridge Motor Driver

The L293D IC is a popular dual-channel H-bridge motor driver that allows bidirectional control of two DC motors or one stepper motor. It can drive inductive loads such as relays, solenoids, and small motors, making it widely used in robotics, motor control systems, and automation projects.

Each channel can deliver up to 600mA continuous current and supports 4.5V–36V motor voltage, with built-in internal diodes for back-EMF protection. Its TTL-compatible logic inputs make it easy to interface with microcontrollers, Arduino, and Raspberry Pi.

🔹 Applications

• Robotics and automation projects

• Driving DC motors with forward/reverse control

• Stepper motor control in CNC and 3D printers

• Controlling solenoids, relays, and actuators

• Arduino & Raspberry Pi motor control projects

• Educational and DIY electronics

🔹 Precautions

• Ensure proper heat dissipation when driving higher loads

• Use external power supply for motors to avoid damaging microcontrollers

• Do not exceed 36V motor supply voltage

• Maximum continuous output current per channel: 600mA

• Protect against short circuits and overheating

• Use flyback diodes for additional safety when working with larger inductive loads

🔹 Technical Specifications

• IC Type: Dual H-Bridge Motor Driver

• Package: DIP-16

• Number of Channels: 2 (dual full-bridge drivers)

• Motor Voltage Range: 4.5V – 36V

• Logic Supply Voltage (Vcc1): 4.5V – 7V

• Output Current per Channel: 600mA continuous (1.2A peak)

• Compatible Loads: DC motors, stepper motors, solenoids, relays

• Input Logic: TTL/CMOS compatible

• Built-in Protections: Thermal shutdown, internal clamp diodes

• Pin Count: 16 pins

• Operating Temperature: 0°C to +70°C

📹 Tutorial Video

Watch L293D Motor Driver IC Tutorial

🔹 Related Categories

• Arduino and Accessories

• Electronics Components

• IC’s

• Tools and Accessories

• Drones

🔹 Summary

The L293D H-Bridge Motor Driver IC (DIP-16) is a versatile and reliable solution for controlling DC and stepper motors in robotics, automation, and embedded systems. With dual-channel output, wide voltage range, and built-in protection features, it is perfect for Arduino, Raspberry Pi, and DIY electronics projects. A must-have for motor control applications in your IC’s collection.